I'm trying to calculate resolution rates from our help ticketing system in
Excel - I've tried several recommendations from here and they're not counting
total hours (if the range is more than 1 day, it's not adding the additional
24 hours).

My Dates are formatted like this:

Column A: 2/4/10 9:25
Column B: 3/15/10 14:07
The formatting for these cells is: Date 3/14/01 13:30

The result of a simple B1-A1 is coming out to: 4:42
The formatting for this cell is: Custom h:mm

I'm hoping someone can provide me with some suggestions, it would be much
appreciated!

Thanks -
Rhonda